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    <p>I think you are asking to see what I call the source code for a function in a package. If so, the way I do it is as follows, which has worked successfully for me on the three times I have tried. I keep these instructions handy in a few places and just copied and pasted them here:</p> <p>To see the source code for a function in Program R download the package containing the function. Specifically, download the file that ends in "tar.gz". This is a compressed file. Expand the compressed file using, for example, "WinZip". Now you need to open the uncompressed file that ends in ".tar". Download the free software "7-Zip". Click on the file "7zFM.exe" and navigate to the directory containing the ".tar" file. You can extract the contents of that ".tar" file into a new folder. The contents consist of R files showing the source code for the functions in the R package.</p> <p>EDIT:</p> <p>Today (July 8, 2012) I was able to open the 'tar.gz' file using the latest version of 'WinZIP' and could copy the contents (the source code) from there without having to use '7-Zip'.</p> <p>EDIT:</p> <p>Today (January 19, 2013) I viewed the source code for functions in base R by downloading the file 'R-2.15.2.tar.gz' </p> <p>To download that file go to the <a href="http://cran.at.r-project.org/" rel="nofollow noreferrer">http://cran.at.r-project.org/</a> webpage and click on that file in this line: </p> <p>"The latest release (2012-10-26, Trick or Treat): R-2.15.2.tar.gz, read what's new in the latest version."</p> <p>Unzip the file. WinZip will work, or it did for me. Then search your computer for <code>readtable.r</code> or another base R function.</p> <p>agstudy noted here <a href="https://stackoverflow.com/questions/14417214/source-file-for-r-function">https://stackoverflow.com/questions/14417214/source-file-for-r-function</a> that source code for <code>read.csv</code> is located in the file <code>readtable.r</code>, so do not expect every base R function to have its own file.</p>
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    1. POWhere is the .R script file located on the PC?
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    1. USMark Miller
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    1. CO+1 This method helped in finding some functions. Thanks.
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